My take is a bit out there but personally I look at the Earth as an organic machine. Its been here for billions of years , I'm sure there are times it runs hotter and colder. An being were just hairless apes and compared to the universe as insignificant as a gnat on a dogs ass ,, its not really surprising that we have no way of knowing how long these cycles last and just guess what is causing them, like cave men hearing thunder and thinking God's are angry.
I mean as far as animals on this planet go we are the stupid ones ,, were the only ones that try to murder , maim , rape and destroy their own kind daily and make up excuses why its all ok. Maybe we should ask some of the smarter animals about global warming ,,, I bet the whales n dolphins got it figured out by now.